[SATLUG] Netmask /32 - is it usable?
bruce.dubbs at gmail.com
Sat Jun 2 11:09:06 CDT 2012
Don Wright wrote:
> The question came up on a Debian list about supporting the /32 netmask
> (255.255.255.255). I can't see any way to run a TCP session on such a network,
> but since the list has been quiet, I'll throw it out for discussion.
> Is there any practical use for an interface that can't talk to anyone else? Or
> is there a pathway I'm not seeing? --Don
It could be useful in a routing table:
Destination Gateway Genmask Flags Metric Ref Use Iface
184.108.40.206 0.0.0.0 255.255.255.255 U 0 0 0 eth1
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0
The destination could do the same in reverse, so the conversation would
only be between those two systems.
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